Have you ever had a can of Coke and thought that it would taste better if it was open source? No? Well, some people have and they have created the world’s first “open source” cola. And it’s on version 1.1.3
Anybody can make the drink, modify and improve on it as they see fit, as long as the recipe is made public under the GNU General Public License. However, recipes are not copyrightable, so the legal basis for that premise is untested.
Originally released as a promotional tool to explain open source software, the drink became a success and the company that made it sold 150,000 cans, and the creators became better known for the cola than for the software they were trying to promote!